milkman

Milkman is an open-source, JavaFx-based, plugin-driven request/response workbench and desktop alternative to Postman and Insomnia. It supports multiple protocols including HTTP/REST, GraphQL, gRPC (with server reflection and streaming), WebSocket, Socket.IO, JDBC/SQL, Cassandra CQL, and Model Context Protocol (MCP).

{
  "mcpServers": {
    "milkman": {
      "command": "npx",
      "args": [
        "-y",
        "api-evangelist/milkman"
      ]
    }
  }
}

claude mcp add milkman npx -y api-evangelist/milkman

{
  "mcpServers": {
    "milkman": {
      "command": "npx",
      "args": [
        "-y",
        "api-evangelist/milkman"
      ]
    }
  }
}